Improved sliding mode vibration control for a stiffened plate based on local strain compensation
DU Fei1,2,3,MA Tianbing1,2,3,LIU Jian3,LUO Zhi3
1.State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China;
2.Anhui Key Laboratory of Mine Intelligent Equipment and Technology, Anhui University of Science and Technology, Huainan 232001, China;
3.College of Mechanical Engineering , Anhui University of Science and Technology, Huainan 232001, China
Abstract：In the active vibration control of a stiffened plate, the sensing piece and the actuation piece are in a relative position pasting form.Experiments show that there is local strain effect in this way, which will lead to the attenuation of vibration control effect and even the divergence of control.Aiming at this, a local strain compensation scheme was constructed and an improved power law approaching sliding mode control algorithm based on local strain compensation was designed.The vibration mode of the stiffened plate was taken as the control object.An active vibration control experiment of the stiffened plate was carried out on the NI-CompactRIO 9024 platform.The experimental results show that the vibration suppression effect of the improved power law approaching sliding mode control algorithm based on local strain compensation could reach 13.16 dB for the first mode of the stiffened plate, which is 2.57 dB higher than the 10.59 dB of the uncompensated improved power law approaching sliding mode algorithm.
杜菲1,2,3，马天兵1,2,3，刘健3，罗智3. 基于局部应变补偿的加筋板改进滑模振动控制[J]. 振动与冲击, 2020, 39(6): 176-180.
DU Fei1,2,3,MA Tianbing1,2,3,LIU Jian3,LUO Zhi3. Improved sliding mode vibration control for a stiffened plate based on local strain compensation. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(6): 176-180.
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